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document system12 c352 clock, but like with system11 the pitch is about 5MHz off (perceived from pcb/cab)

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This commit is contained in:
Michaël Banaan Ananas 2011-09-20 15:50:23 +00:00
parent 132b07bd66
commit c27b19f0d3
2 changed files with 5 additions and 6 deletions
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5
src/mame/drivers/namcos11.c
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@ -996,9 +996,8 @@ static MACHINE_CONFIG_START( coh100, namcos11_state )
MCFG_PSXGPU_ADD( "maincpu", "gpu", CXD8538Q, 0x200000, XTAL_53_693175MHz )
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
// note: C352 internal divider is currently set to 288, but that sounds wrong with an input clock of 20MHz.
// 228.0 here is a guess, estimated from PCB recordings sound/music pitch.
MCFG_C352_ADD("c352", 20000000 / (228.0/288.0))
MCFG_C352_ADD("c352", 16934400*1.5) // measured at 20MHz, but that's too lowpitched
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)

6
src/mame/drivers/namcos12.c
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@ -201,13 +201,13 @@ Notes:
6734 : MAX734 +12V 120mA Flash Memory Programming Supply Switching Regulator (SOIC8)
3414A : NJM3414A 70mA Dual Op Amp (SOIC8)
LC78832M : Sanyo LM78832M 2-Channel 16-Bit D/A Converter LSI with 2 On-Chip Digital Filters (SOIC20)
2061ASC-1 : IC Designs 2061ASC-1 Programmable Clock Generator (SOIC16)
2061ASC-1 : IC Designs 2061ASC-1 Programmable Clock Generator (SOIC16), master input of 14.7456MHz
R4543 : EPSON Real Time Clock Module (SOIC14)
DSW(2) : 2-Position DIP Switch (All OFF)
N341256 : NKK N341256 32k x8 SRAM (x2, SOJ28)
H8/3002 : Sound CPU, Hitachi H8/3002 HD6413002F17 (QFP100), clocked at 16.737MHz
C416 : Namco custom C416 (QFP176)
C352 : Namco custom C352 PCM sound chip (QFP100)
C352 : Namco custom C352 PCM sound chip (QFP100), clocked at 29.168MHz, from 2061 pin 9
MOT1 : PALCE 22V10H (PLCC28, labelled 'S12MOT1A')
*Replaced by PALCE 22V10H (PLCC28, labelled 'S12MOT1C') on MOTHER (C) PCB
MOT2 : PALCE 22V10H (PLCC28, labelled 'S12MOT2A')
@ -1672,7 +1672,7 @@ static MACHINE_CONFIG_START( coh700, namcos12_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_C352_ADD("c352", 16737350*1.5 ) // ?
MCFG_C352_ADD("c352", 16737350*1.5 ) // measured at 29.168MHz, but that's too highpitched
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)